Sierra Leone
total: 17.5 years
male: 17.2 years
female: 17.8 years (2004 est.)
Singapore
total: 36.2 years
male: 35.9 years
female: 36.6 years (2004 est.)
Slovakia
total: 35.1 years
male: 33.5 years
female: 36.9 years (2004 est.)
Slovenia
total: 39.8 years
male: 38.3 years
female: 41.3 years (2004 est.)
Solomon Islands
total: 18.4 years
male: 18.3 years
female: 18.5 years (2004 est.)
Somalia
total: 17.6 years
male: 17.5 years
female: 17.6 years (2004 est.)
South Africa
total: 24.7 years
male: 24.2 years
female: 25.3 years (2004 est.)
Spain
total: 39.1 years
male: 37.8 years
female: 40.5 years (2004 est.)
Sri Lanka
total: 29.1 years
male: 28 years
female: 30.1 years (2004 est.)
Sudan
total: 17.9 years
male: 17.7 years
female: 18.1 years (2004 est.)